[gtk/wip/chergert/glproto: 589/920] detach shader before deleting

[Christian Hergert <chergert src gnome org>]

commit b713c7cbcd80f1e9d897e81ae2cc865307a796a1
Author: Christian Hergert <chergert redhat com>
Date:   Mon Dec 28 20:07:12 2020 -0800

    detach shader before deleting

 gsk/next/gskglcompiler.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/gsk/next/gskglcompiler.c b/gsk/next/gskglcompiler.c
index d5df9bc3b4..450a57b6c7 100644
--- a/gsk/next/gskglcompiler.c
+++ b/gsk/next/gskglcompiler.c
@@ -622,10 +622,13 @@ gsk_gl_compiler_compile (GskGLCompiler  *self,
     glBindAttribLocation (program_id, GPOINTER_TO_UINT (value), key);
   glLinkProgram (program_id);
 
-  glDeleteShader (fragment_id);
+  glGetProgramiv (program_id, GL_LINK_STATUS, &status);
+
+  glDetachShader (program_id, vertex_id);
   glDeleteShader (vertex_id);
 
-  glGetProgramiv (program_id, GL_LINK_STATUS, &status);
+  glDetachShader (program_id, fragment_id);
+  glDeleteShader (fragment_id);
 
   if (status == GL_FALSE)
     {